1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kumpel [21]
3 years ago
13

1. What element has 81 protons in the nuclei of its atoms?

Biology
1 answer:
lakkis [162]3 years ago
4 0
A little trick i learnt: The atomic number reflects how many electrons there are, and there must be an equal charge. therefore, there are the same amount of protons as there are electrons. so if it has 81 protons, we look for number 81 in the periodic table, Thallium
You might be interested in
The longest cells in the body are _______ cells.
34kurt
Nerve cells are the longest. B
8 0
3 years ago
Which of the following cellular materials is solely composed of DNA and proteins?
diamong [38]

Answer:

Chromosomes are thread-like structures in organisms, found primarily in the nucleus of the cell. These chromosomes contain genetic information and are involved in cell replication and reproduction. Along with DNA, chromosomes contain histones, which are proteins that keep the chromosome bound together.

5 0
3 years ago
Read 2 more answers
______ is a defense mechanism that occurs when group members believe the logical, but false explanation of their behavior.
Ede4ka [16]

Answer:

The correct answer is- Rationalization

Explanation:

Rationalization is a defense mechanism that involves the action to justify their unobvious behaviors by logical reasons to avoid true explanation. For example, if an employee is not given promotion might rationalize his disappointment by saying that he does not want extra responsibilities.

Rationalization may help the person to avoid guilt and maintain self-respect when he has done something wrong. Many times rationalization is not harmful to the person but if it becomes a habit of a person it can cause a problem for him and others. Therefore the correct answer is rationalization.

3 0
3 years ago
4. Using the Celsius scale, at what temperature does water freeze? At what temperature does water boil?
sweet-ann [11.9K]

Answer:

Using celsius water freezes at 0, and water boils at 100.

Explanation: That is the purpose of the celsius scale to measure between those two points.

6 0
2 years ago
What is bi cuspid valve and where it is present? ​
cupoosta [38]

Answer:

Bicuspid aortic valve is a type of abnormality in the aortic valve in the heart. In bicuspid aortic valve, the valve has only two small parts, called leaflets, instead of the normal three. This condition is present from birth. It can occur with other heart defects. The heart's ventricles are the two lower chambers of the heart.

location :

Bicuspid valve is one of the four valves of the heart which is situated between the left atrium and the left ventricle. Tricuspid valve is one of the four valves of the heart which is situated between the right atrium and the right ventricle. Bicuspid valve is present in between the left atrium and the left ventricle.

please mark me as BRAINLIEST

3 0
3 years ago
Read 2 more answers
Other questions:
  • What is the process in which muscles contact to move food throughout the digestive system
    9·1 answer
  • Earthquake occurs because of ?
    11·2 answers
  • A mineral crystallizes from magma deep inside Earth.
    6·2 answers
  • Cell membrane: cell::
    12·1 answer
  • In which situation would new technology be most likely to cause a change in an existing theory about new structures a cell
    8·2 answers
  • Which of the following is an example of qualitative data?
    6·1 answer
  • A habitat contains all of the abiotic and
    5·2 answers
  • The equator is the only line of latitude that is a great circle. T,F?
    5·1 answer
  • 4. Why is nitrogen fixation so important?
    9·1 answer
  • If the U.S. population is in Hardy-Weinberg equilibrium, approximately what percent of the population are heterozygous carriers
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!